If you thought BitTorrent and Usenet would be the kings of peak-hour download traffic in the US, well, you'd be wrong. A new study from broadband company Sandvine, estimates that YouTube and Netflix are the kings of the US download traffic hill, by a long shot.

As you can see from the chart above, Netflix takes a huge 31.62% of the downstream traffic while YouTube scoops up 18.69%, so combined, they enjoy over half the US downstream traffic. If you look to the left, upstream traffic is completely dominated by BitTorrent with a huge 36.35%, and in second place is the usual HTTP traffic, with just 6.03%.